Incinerator



Feb. s, 1938.

M. 1.. ROSE 2,107,507

INCINERATOR Filed Feb. 25, 1955 2 Sheets-Sheet 1 JNVENTOR. MAURICE L.Ros:

AT EYS.

Feb. 8, 1938.

M. L. ROSE INCINERA'ITOR Filed Feb. 25, 1955 2 Sheets-Sheet 2 MAURICE BYv .INVENTOR;

L. Ross TORN'EYS.

Patented Feb. 8, 1938 UNETED STATES PATENT OFFICE 1 Claim.

. This invention relates particularly to an incinerator for the disposalof refuse, garbage and the like.

An object of the invention is to provide an 5 incinerator which willdestroy the garbage and refuse through the combustible activity of theingredients constituting the same, or through the use of additionalfuel.

A further object of the invention is to provide 10 an incineratorutilizing a rotary retort through which the garbage and rubbish to beburned passes in a continuously moving stream, and in moving throughsaid retort is destroyed by burning, whereby at the termination of theprocess, the resulting product or refuse is of a sanitary nature whichmay be disposed of without injury to the publichealth, comfort andconvenience. Other objects of the invention are to provide anincinerator that will be superior in point of simplicity,inexpensiveness of construction, positiveness of operation, and facilityand convenience in use and general efficiency.

In this specification and the annexed drawings, the invention isillustrated in the form considered to be the best, but it is to beunderstood that the invention is not limited to such form, because itmay be embodied in other forms; and it is also to be understood that inand by the claim following the description, it is desired to cover theinvention in whatsoever form it may be embodied.

In the accompanying drawings:

Fig. 1 represents a side elevation of an incinerating plant constructedin accordance with my invention.

Fig. 2 is a plan View of Fig. 1.

Fig. 3 is an end elevation of Fig. 2.

Fig. 4 is a section taken through Fig. 1 on the line 4-4.

Fig. 5 is a section taken through Fig. 2 on the line 55.

In detail the construction illustrated in the drawings comprises anelevated ramp I, running from the ground level to an elevated dumping 5platform 2, whereby trucks loaded with garbage,

refuse and the like, may be driven onto the platform and the contents ofthe said truck dumped into a series of collection bins 3 which liedirectly below the platform 2, each of said bins having 50 inclined anddownwardly converging bottom walls which terminate in a discharge chute4 at the bottom thereof. The discharge end of the bins 3 overlie theupper run of an endless belt 5, a portion of which runs in a pit 8beneath the bins 3. 55 The remaining portion of the belt 5 is inclinedupwardly away from the rear end of the bins 3 whereby refuse dischargedfrom the bins 3 onto the conveyor is carried upwardly and dumped into acollection chamber 1. All material discharged into the collectionchamber 1 drops of its own weight therein into the bottom of saidchamber, and wherefrom the said refuse enters a feed tube 8 havingeither a spiral feed screw therein or a plunger for conveying therefuse, etc., into the entrant end of the rotary retort 9. The type of10 feeding means contained within the tube 3 may be of any desirablecharacter, capable of automatically feeding the refuse to be disposedof, into the retort 9.

The retort 9 is cylindrical in shape and the outside thereof is providedwith rings lB-I 0 which are supported in bearings I |H to permitrelatively free rotation of the said retort. A gear I2 is providedaround the retort and in meshing engagement with a driving pinion IS ona motor 14, said last mentioned unit forming the 'propulsion means ofthe retort. The entrant end of the retort 9 is at a slightly higherelevation than that of the discharge end thereof, and said entrant endof the retort is rotatably journaled on one side of a casing l5, and thesaid casing and retort at the point of connection are open tocommunication with each other. The casing l5 may be termed an explosionchamber as will later appear from the description of the invention. Thedischarge end of the retort 9 abuts in rotatable relationship againstone side of a combustion chamber 18, and with which the interior of saidretort communicates. The refuse that is discharged into the entrant endof the retort 9, due to the slope of the said retort and the rotationthereof, gradually works its way through the length of said retort. Asthe refuse is passing through the retort it is subjected to heatdeveloped by a furnace l8 and thence through a pipe or conduit it intothe combustion chamber 16. The refuse itself contains sufficientcombustibles that will ignite with the application of heat thereto, andif necessary, either a gas or oil burner 20 located in the heating boxIE may be used to develop flames to generate additional heat to thatcoming from the boilers ll. A temperature of from 1200 to 4000" F. maybe created in the retort and such a temperature range is sufficient tocompletely destroy all of the garbage and rubbish moving through saidretort. The combustible nature of the refuse itself supplies a goodlyportion of the fire necessary to destroy the rubbish, and. the rotarymovement of the retort insures that all of the said refuse will becompletely burned= The smoke and products of combustion given off by theburning refuse, flows in a natural path toward the casing l5, and anygases given off during the burning of the refuse which may be of acombustible nature and which may explode, thus creating a pressurewithin the retort in excess of a capacity which may be accommodated bythe retort, is allowed. to escape through expansion door 22 provided onthe chamber l5. Such expansion would be momentary and as soon as thepressure would be relieved from the retort, the doors wouldautomatically close. However, in order to pull the smoke, names and thegases of combustion through the retort, I have provided a pipe 23 incommunication. with the chamber I5, which pipe, at its other end,connects with a washer 24 for washing the solids and toxic gases out ofthe smoke, flames and products of combustion. A pipe 25 leads from thewasher 24 to a suction fan 26, and from the suction fan a conduit 27communicates with the furnace l8. The suction fan 26 sucks or pulls thegases, etc., through the retort and washer, and discharges any heatedgases which may remain back into the furnace 58, at which point aportion of the gases is directed into an upper compartment 28 of thefurnace l8, and the rest into a lower compartment 29, where the gasesare burned and completely destroyed. The heat generated thereby isutilized for preheating gases contained in the compartment 28 wherefromthey are reconveyed to the combustion chamber IS. The combustion whichtakes place in the compartment 29, being of-a high temperature, isforced through the boilers H and isthereby utilized for generatingsteam. The gases are drawn through the boilers and out into theatmosphere by means of a fan 33. The entire system of furnace,combustion chamber, retort, explosion chamber and washer comprises 'aclosed circuiatory system and the refuse passing through said,

retort is burned or destroyed under a forced draft. In order toeliminate any obnoxious fumes escaping to the atmosphere from thecollection chamber 1, I have provided a pipe 33 which, at one end,communicates with the collection chamber I, and at its other end withthe pipe 23. The draft created'in the pipe 23 by the fan 26 will drawall obnoxious gases into the pipe 23 and further into the furnace l8.

7 By the time the refuse which enters the retort is discharged out ofthe discharge end of the same, into the combustion chamber l6,,it fallson the floor of said'chamber in the form of an ash or similar innocuousproduct which may be disposed of without injury 'to the public health,as ash remover 35 being provided beneath the combustion chamber l6.

With my system of incineration, the garbage and refuse is completelydisposed of without any part of portion of the products of combustiongiven off during the incineration escaping into the air in the form ofsoot or smoke as is commonly the practice. In my apparatus thecontinuous recirculation of a certain amount of the used gases ofcombustion creates an economy in the opera tion of the entire plant, andmaterially reduces the amount of fuel necessary to effect efficientincineration. Furthermore, the operation of my incinerator is odorlessin that the obnoxious gases given off during the incineration arecaptured and put through a washer, after which the remainder of saidgases are returned to the furnace and re circulated.

In order to care for the intense heat developed in my retort, I havelined the same with fireproofe or other desirable refractory materials,it being necessary because of the forced draft system and the intensityof the heat developed, to construct the apparatus of material which willnot break down under the temperatures used.

Having thus described this invention, what I claim and desire to secureby Letters Patent is:

In an apparatus for destructively disposing of garbage; a combustionchamber; an inclined rotary retort for advancing the refuse to be burnedtoward said combustion chamber; means in c0mmunication with the end ofsaid retort opposite said combustion chamber for feeding thereintomaterials to be burned; an explosion chamber in communication with saidlast mentioned end of said retort; a furnace; a passageway connectingsaid furnace with the combustion chamber; a conduit connecting the saidfurnace with said explosion chamber; a blower for maintainingcirculation through the conduit, passage way, combustion chamber, retortand explosion chamber, said blower creating a forced draft circulationthrough the system; means for moving the refuse through the retort inmoisture extracting relation with the not gaseous products in oppositerelation to the direction of movement of the products of combustiontherethrough; means for continueusiy burning in and venting to theatmosphere through the furnace a selected portion of the gas given offin the reduction of the refuse; and means for discharging fromthecombustion chamber the final products resulting from the terminationof the incineration process. 1

MAURICE L. ROSE.

